Mutual Promises
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
Promises simultaneously made by two parties to each other, each promise being the consideration of the other.
Hob. 88; 14 Mees. & W. 855; Add. Cent. 22.
If one of the promises be voidable, it will yet be good consideration; but not if void.
Story, Cont. § 81; 2 Steph. Comm. 114.